Aromatherapy Certification
Kathi Keville
Become a certified aromatherapist with Kathi Keville's comprehensive aromatherapy course. Learn to blend essential oils for holistic wellness.
More resources on Aromatherapy
aromaweb.com
AromaWeb is a comprehensive online resource for essential oils and aromatherapy, offering detailed oil profiles, safety and dilution guidelines, blending ideas, recipes, and articles to support safe, informed use.
naha.org
NAHA.org is the site of the National Association for Holistic Aromatherapy, a professional organization for aromatherapy educators and practitioners. It provides educational resources, safety guidelines, training/certification information, articles, events, and a practitioner directory.
Tisserand Institute
An essential oil safety and education website run by aromatherapist Robert Tisserand, offering research-based safety data, an adverse reaction database, and courses covering essential oil risks, drug interactions, and appropriate dilution and use.
Aromatherapy and Essential Oils: A Map of the Evidence
Department of Veterans Affairs evidence map synthesizing 25 systematic reviews covering 171 trials across 26 conditions, plotting effect direction and reviewer confidence for inhaled and topical use. Finds moderate support for dysmenorrhea pain and insufficient evidence for most other claims.
Aromatherapy With Essential Oils (PDQ) — Health Professional Version
National Cancer Institute's evidence-graded summary of aromatherapy: extraction chemistry, preclinical antimicrobial and sedative findings, and human trials for anxiety, nausea, sleep and pain, each scored by study design. Documents adverse effects and the weakness of most trial evidence.
Essential Oil Safety: A Guide for Health Care Professionals (2nd Edition)
Reference toxicology text covering 400 essential oil profiles and 206 constituent profiles, with maximum dermal concentrations, drug interactions, pregnancy and pediatric cautions, and roughly 4,000 citations. The standard authority practitioners cite for dilution limits and contraindications.